protected override NodeValue VisitUnaryExpression(UnaryExpressionNode node)
{
NodeValue expressionValue = Visit(node.ExpressionNode);
if (expressionValue is UndefinedValue)
{
return(new UndefinedValue());
}
try
{
NodeValue nodeValue = ConstEvaluationHelper.EvaluateUnaryOperation(node.Operator, expressionValue);
if (nodeValue is IntValue intValue)
{
if (intValue.Value < Int32.MinValue || intValue.Value > Int32.MaxValue)
{
node.Annotations.Add(new ArithmeticOperationOverflowError(node.OperatorLocation));
return(new UndefinedValue());
}
}
return(nodeValue);
}
catch (InvalidUnaryOperationException)
{
node.Annotations.Add(new InvalidUnaryOperationError());
return(new UndefinedValue());
}
}
protected override NodeValue VisitBinaryExpression(BinaryExpressionNode node)
{
NodeValue leftNodeValue = Visit(node.LeftSideNode);
NodeValue rightNodeValue = Visit(node.RightSideNode);
if (leftNodeValue is UndefinedValue || rightNodeValue is UndefinedValue)
{
return(new UndefinedValue());
}
try
{
NodeValue nodeValue =
ConstEvaluationHelper.EvaluateBinaryOperation(node.Operator, leftNodeValue, rightNodeValue);
if (nodeValue is IntValue intValue)
{
if (intValue.Value < Int32.MinValue || intValue.Value > Int32.MaxValue)
{
node.Annotations.Add(new ArithmeticOperationOverflowError(node.OperatorLocation));
return(new UndefinedValue());
}
}
return(nodeValue);
}
catch (InvalidBinaryOperationException)
{
node.Annotations.Add(new InvalidBinaryOperationError(node.OperatorLocation, node.LeftSideNode.Location, node.RightSideNode.Location));
return(new UndefinedValue());
}
catch (DivideByZeroException)
{
node.Annotations.Add(new DivideByZeroError(node.OperatorLocation, node.RightSideNode.Location));
return(new UndefinedValue());
}
catch (OverflowException)
{
node.Annotations.Add(new ArithmeticOperationOverflowError(node.OperatorLocation));
return(new UndefinedValue());
}
}
